Modals | Must, Should, Have to

Ann: Well I 'm a little worried
about going abroad for the first time. It’s Moscow
and I’m a bit unsure of things. You’ve been there,
haven’t you? Can you tell me what I need, or give me
some advice or something?

Tom: Yeah I have been there a few
times. Ahm, well you must have a passport, but I
guess you have one of those.

Ann: Haha, very funny.

Tom: Seriously, though. You have
to get a visa. But that's easy to get down at the
embassy but don’t worry you don’t have to get any
vaccinations.

Ann: Well that’s a relief. Hey, is
there anything else I need to know? I'm a little
nervous.

Tom: Well, It’s winter and Moscow
gets very cold, so you should definitley pack some
warm clothes.

Ann: Yeah, that’s one thing I'm
not looking forward to. I really don't like the
cold.

Tom: But you can’t just sit in
your room staying warm. You have to get out.
Actually, you should use the subway to get around.
That will keep you out of the freezing wind and its
quite interesting too.

Ann: OK, yeah, well, you’ve given
me a bit to think about. Thanks.

Grammar Notes

Point
1: We use 'must' to stress
necessity for very important things.

You must have a driving license before you take the
car out.

Must I have a passport to travel abroad?

Point
2: We use 'should' to make
suggestions.

You should take some warm clothes.

You shouldn’t forget to take a hat.

Point
3: We use 'haveto' for necessity and to stress a suggestion.

You have to get a visa. (necessity)

You have to get out of your room! (strong suggestion)

Point
4: If a verb follows a modal verb,
it will always be in the base form (V1).